single-sided pattern Ground nstruction mats 22 in for civil Engineering . single-sided pattern Ground protection mats 2’x8′ for c [] IN STOCK! - 4x8 Black Mats. Our ground protection mats made from 100% recycled high-density polyethylene (HDPE), can hold up to 100 tons and are tough enough to not break. Mats have cleats and textured tops